求助：“ERROR 010157: 无法打开要素类”

执行: volta12centreline storglaciaren_outline storglaciaren_dem_10m 30 20 F:\volta_1_2\volta_1_2_test_data.gdb\centreline
开始时间: Wed Dec 26 20:08:17 2018
正在运行脚本 volta12centreline...
Generating centreline(s) for glacier 1 of 1

Traceback (most recent call last):
  File "F:\volta_1_2\volta_1_2_centreline.py", line 333, in <module>
    new_branch_poly = new_branch(initial_flowline, "in_memory\\new_outline", glacier_outline)
  File "F:\volta_1_2\volta_1_2_centreline.py", line 269, in new_branch
    branch_points_alt = ExtractValuesToPoints(flowline_points, dem, "in_memory\\branch_points_altitude")
  File "e:\arcgis10.2\desktop10.2\arcpy\arcpy\sa\Functions.py", line 1359, in ExtractValuesToPoints
    add_attributes)
  File "e:\arcgis10.2\desktop10.2\arcpy\arcpy\sa\Utils.py", line 47, in swapper
    result = wrapper(*args, **kwargs)
  File "e:\arcgis10.2\desktop10.2\arcpy\arcpy\sa\Functions.py", line 1352, in Wrapper
    add_attributes)
  File "e:\arcgis10.2\desktop10.2\arcpy\arcpy\geoprocessing\_base.py", line 498, in <lambda>
    return lambda *args: val(*gp_fixargs(args, True))
ExecuteError: ERROR 010157: 无法打开要素类 in_memory\xxc7613。
执行(ExtractValuesToPoints)失败。


执行(volta12centreline)失败。
失败 在 Wed Dec 26 20:08:20 2018 (经历的时间: 2.99 秒)